5 September 2019
⇐20190904 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190906⇒

NOAA
1 Active Region
12748

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W20S23
(302",-473") 		E17-W41
(58) 		8.2 -0.4 -6.7e20
2 E03N71
(-14",852") 		E70-W85
(155) 		3.6 1.4 1.8e21
3 E26S08
(-418",-242") 		E40-E06
(34) 		3.3 0.1 5.3e19
4 W06S62
(43",-891") 		E06-W25
(31) 		0.3 -0.6 -8.6e19
5 E03S09
(-53",-273") 		E05-E01
(4) 		0.1 -1.0 -9.9e18

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 5-Sep-2019 23:40 UT .